What this calculator does
Force is the push or pull needed to accelerate a mass. This calculator uses Newton's second law for simple force checks.
Formula used
Force equals mass multiplied by acceleration.
How to read the result
The result is in newtons when mass is in kilograms and acceleration is in metres per second squared.
Assumptions
- Uses SI units.
- Assumes a single net force.
- Does not model friction, drag or changing acceleration.
Sources and checks
This calculator uses a standard public formula. Where rules or thresholds can change, source links are listed on the relevant page.
Frequently asked questions
Why is 9.81 a common acceleration?
It is the approximate acceleration due to gravity near Earth's surface, measured in metres per second squared.